In-season NFL decisions, first

AI for Fantasy Football, in Claude & ChatGPT

League Loom is a free, read-only connector that brings your ESPN, Sleeper or Fantrax NFL league into Claude and ChatGPT, so start/sit, waiver, trade and matchup answers use your actual roster and scoring.

Add it on a computer, then ask in Claude's phone app or ChatGPT on the web. This NFL hub links a deeper page for each decision.

Connect your leagues

Looking for a step-by-step walkthrough with prompts? See Claude for fantasy football.

Looking for a tool comparison? See Best AI for fantasy football.

Last updated

AI Assistant
Claude, ChatGPT & more
League Loom
2 leagues connected · ESPN · Sleeper · NFL
Should I start Jaylen Warren or Tony Pollard at flex this week?
WarrenPollard
Oppvs NYJvs IND
Proj pts12.410.1
Snap %61%58%
MatchupSoft frontTough run D
Start Warren for better volume and a friendlier run-funnel matchup.

Pulled from your ESPN redraft league; Warren has out-touched Pollard in two straight weeks.

Ask about your leagues…

Illustrative example, not a live league report. Your answer depends on your league data and AI tool.

See it with a real team

Your teams. A useful answer.

A recorded check-in with real teams.

AI Assistant
Claude, ChatGPT & more
League Loom
Recorded Sleeper football check · team identity omitted
How much waiver budget do I have left?
$345 of a $1,000 waiver budget remained in this recorded check.
Returned league contextValue
Season and period2026 NFL · Week 8
Roster29 players
Budget remaining$345

A useful starting point for a waiver plan. This example does not establish current player availability or recommend a bid. Ask your connected assistant to refresh those details.

Ask about your leagues…

Your first useful answer

Bring your next decision to your AI

Choose where you play and what you want to check. Connect once, then reuse the prompt whenever you need it.

Using Meta Muse? Follow the chat-based Muse setup guide.

These choices are remembered in this browser for seven days.

Using another AI tool? See all connection instructions

What the setup page looks like

Screens from leagueloom.com/setup, shown with empty fields. Select a screen to open it full size.

League Loom setup page titled Which platforms do you use?, with both the Sleeper and ESPN cards selected, Fantrax unselected, and an active Continue button.
In the setup wizard (opened by the connector sign-in, or directly at leagueloom.com/setup), pick every platform your leagues are on. Sleeper and ESPN are selected here; Fantrax works the same way.
League Loom Sleeper setup step with an empty Username field, a Sport menu set to NFL, help text on finding your username in the Sleeper app, and a Find my leagues button.
Sleeper step: enter your Sleeper username, choose the sport, and select Find my leagues. No password is needed because Sleeper league data is public.
League Loom ESPN setup step with empty espn_s2 and SWID cookie fields, a Sport menu set to NFL, help text on copying both cookies from fantasy.espn.com in desktop browser DevTools, and a field to paste a league URL.
ESPN step: a private league needs your espn_s2 and SWID cookies, copied from fantasy.espn.com in a desktop browser. A public league needs no cookies; paste its league URL instead.

Why League Loom

In-season NFL decisions, first

Most AI fantasy tools only know what you type into the chat, so the advice goes stale the moment your matchup changes or a player gets ruled out. League Loom instead reads your live ESPN, Sleeper, or Fantrax league data directly, so the AI always sees your current roster, bench, standings, and this week's matchup before it answers.

Ask a start/sit question and it compares projected points, matchup difficulty, and role for both players from your actual league, not a generic ranking list. Ask about waivers and it can pull the ranked list of available players and trending adds so you're not guessing who's worth a claim. Before kickoff, it can run a lineup check across your starters and flag anyone on bye or listed with an injury designation, so you don't leave points on the bench by accident.

It's also one of the only connectors that supports Fantrax NFL leagues, including IDP and salary/contract details serious keeper and dynasty players track. All of this happens inside the AI chat you already use, with no copying stats back and forth.

FAQ

Questions

Which fantasy football platforms work?

ESPN, Sleeper, and Fantrax NFL leagues all connect. Public ESPN leagues need nothing; private ones use your espn_s2 and SWID cookies. Sleeper needs just your username.

Can the AI change my lineup?

Current connector tools use league data to answer questions; no write-action tools are registered today.

Does it cost anything?

No. The League Loom connector is free, with no subscription and no per-league fee. Connect once at leagueloom.com/mcp and start asking. Fair-use request budgets apply.

Can AI set my fantasy football lineup automatically?

No current tool can change a lineup or account. A credential alone never counts as consent, and any future write tool must require your explicit confirmation.

Can AI tell me if my players are on bye or injured this week?

Yes. League Loom can run a lineup check on your starters and flag bye weeks and injury designations pulled from your league data, and it surfaces the same injury and bye status on the ranked available-player list for waiver decisions.

Does the AI know my league's specific scoring and roster rules?

Yes. It reads your league's actual settings, PPR or standard scoring, starting lineup slots, bench and IR size, waiver type and FAAB budget, and playoff format, then explains them in plain English instead of assuming default rules.

Can I set League Loom up on my phone?

Add the connector on a computer: claude.ai or Claude Desktop, or ChatGPT on the web. What works on a phone afterward depends on the assistant. In Claude, a connector added on the web or desktop is also available in the Claude iOS and Android apps, so you can ask about your leagues from your phone. In ChatGPT, custom apps like League Loom currently run only on the web, not in the ChatGPT phone apps. If you start on a phone, use Send to my computer to email or message yourself the link and finish later.

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Bring League Loom to your AI tool

Free connector, private setup, and 19 tools that retrieve or analyze your league data, plus a share link for your league chat when you ask. No tool changes your lineup or roster.

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